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NFS: Import NFS3ERR definitions

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enum nfs_stat in uapi/linux/nfs.h collects the on-the-wire status
codes for every NFS version under version-agnostic NFSERR_* names.
The in-kernel NFS client and server reference these names
internally, which drags uapi/linux/nfs.h into many translation
units that need nothing else from that header.

xdrgen conversion will provide spec-based definitions of the NFS
status enum constants. Replacing the existing internal references
with version-specific names requires a version-specific spelling
for each code that NFSD uses.

linux/nfs4.h already supplies the NFSv4 codes, but NFSv3 has no
counterpart header, and not every NFSv3 code has an NFS4ERR_*
spelling: NFSERR_NOT_SYNC (10002) and NFSERR_REMOTE (71) have no
NFSv4 equivalent at all, and NFSERR_JUKEBOX (10008) appears in
NFSv4 as NFS4ERR_DELAY.

Introduce the NFSv3 status codes as NFS3ERR_* in linux/nfs3.h so a
subsequent patch can respell NFSD's status definitions without
relying on uapi/linux/nfs.h.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Link: https://patch.msgid.link/20260826194444.148243-1-cel@kernel.org
Signed-off-by: Chuck Lever <cel@kernel.org>
This commit is contained in:
Chuck Lever 2026-08-26 15:44:43 -04:00
parent 2987838317
commit 6c1ea6dbf2
1 changed files with 35 additions and 0 deletions
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35
include/linux/nfs3.h
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@ -7,6 +7,41 @@
#include <uapi/linux/nfs3.h>
/*
* NFSv3 error status values.
* See RFC 1813 Section 2.5
*/
enum {
NFS3ERR_PERM = 1,
NFS3ERR_NOENT = 2,
NFS3ERR_IO = 5,
NFS3ERR_NXIO = 6,
NFS3ERR_ACCES = 13,
NFS3ERR_EXIST = 17,
NFS3ERR_XDEV = 18,
NFS3ERR_NODEV = 19,
NFS3ERR_NOTDIR = 20,
NFS3ERR_ISDIR = 21,
NFS3ERR_INVAL = 22,
NFS3ERR_FBIG = 27,
NFS3ERR_NOSPC = 28,
NFS3ERR_ROFS = 30,
NFS3ERR_MLINK = 31,
NFS3ERR_NAMETOOLONG = 63,
NFS3ERR_NOTEMPTY = 66,
NFS3ERR_DQUOT = 69,
NFS3ERR_STALE = 70,
NFS3ERR_REMOTE = 71,
NFS3ERR_BADHANDLE = 10001,
NFS3ERR_NOT_SYNC = 10002,
NFS3ERR_BAD_COOKIE = 10003,
NFS3ERR_NOTSUPP = 10004,
NFS3ERR_TOOSMALL = 10005,
NFS3ERR_SERVERFAULT = 10006,
NFS3ERR_BADTYPE = 10007,
NFS3ERR_JUKEBOX = 10008,
};
enum nfs3_stable_how {
NFS_UNSTABLE = 0,
NFS_DATA_SYNC = 1,